DIRECTION FINDER Russian patent published in 1994 - IPC

FIELD: radio location and navigation. SUBSTANCE: device has receivers 1, 2, heterodynes 3, 4, mixers 5, 6, 7, band-pass filter 8, intermediate-frequency amplifiers 9, 10, amplitude detectors 11, 12, integrators 13, 14, threshold units 15, 16, multiplexers 17, 18, subtracter 19, modulo-two adder 20, correlation unit 21, delay unit 22, multipliers 23, low-frequency filters, comparators 25, digital converter 26, OR gates 27,28, threshold unit 29, band amplifier 30, matching unit 31, switches 32, 33, phase meter 34. EFFECT: increased functional capabilities. 5 dwg